Batch Smart quick quote，
Export quotation with one click，
One-click order
Monday to Saturday8:30-18:00
introduction： Fan selection is generally carried out in the following steps： 1、Calculate and determine the amount of ventilation required in the tunnel： 2、Calculate the total thrust requiredIt It=△P×At(N） among，At：Tunnel cross-sectional area（m2） △P：Sum of resistance（Pa）；Generally, the following should be included4item： 1）Tunnel inlet resistance and outlet resistance； 2）Tunnel surface friction resistance，Suspension fan device、Scaffolding and road signs, etc
2015-03-18 Reading quantity 2781
introduction：What are the advantages of the truck 1、Carrier tiller with plastic handle clamp，Suitable shape，Its very comfortable to use。The operators hand is protected by a strong protector。Lift is easily controlled by hand、Descending and walking controls，Light to use、secure、comfy。 2、The truck is also called the pallet car, which is the logistics handling equipment that plays the role of transporting goods。The carrier has a small body、Light weight、Able to work in narrow passageways and fully loaded into elevators。The control part is mounted on the upper part of the handle，Ease of handling，Flexible control mechanism、reliable、secure。Automatic unloading with overload
2015-03-18 Reading quantity 2899
introduction： 1．Double universal joint Double universal joint(figure4—3)It is composed of two cross-shaft universals。In order to ensure that the working speed of the shaft connected by the 20,000 joint tends to be equal，Indexing mechanism can be provided。Eccentric cross shaft double universal joint cancels the indexing mechanism，It also ensures that the output shaft and the input shaft are close to the same speed。Double universal joint of the fifth bar，It is widely used in the steering drive axle of military off-road vehicles。In this case, the kingpin center deviates from the center of the universal joint1．0～3. 5mmApproach to，Make the working speed of the 20,000 joint close to equal。The main advantage of the double universal joint is that it allows
2015-03-18 Reading quantity 1592
introduction：In useKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，Instead, fill the inner and outer raceways with rolling elements。And most small and medium-sizedKOYORolling bearings are equipped with retainers。 inKOYOBearing in the processing process，The outer ring of the bearing、Inner ring、How do the roller and cage fit together。]Due to improper operation in the process，underlubrication，Rust and corrosion，And some other factors such as electric current，External material，eccentricityKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，
2015-03-18 Reading quantity 1556
introduction：1、Engine cylinder head deformation repair Company two Kawasaki, JapanKLD85ZType loader，Its engine cylinder head is working at high temperature for a long time、High tension、Warping deformation occurs under heat load and alternating load，The cylinder gasket is washed out from the water threshold，Resulting in a drop in combustion chamber pressure、The engine is underpowered and the radiator is pumping water。 Changed the gasket twice in a row，They were washed out again after a month of use。After inspection，Found the cylinder block、Cylinder heads are deformed。Flatness error of the cylinder block is50μm，It also meets the technical requirements，But the flatness error of the cylinder head reaches0.20mm，
2015-03-18 Reading quantity 1456
introduction： Application of pyrometallurgical methods(Or pyrometallurgy)A mechanical device for smelting ores or low-purity metals into certain pure metals or for smelting several metals and non-metals together into alloys of certain compositions。Most metal ores are metallic compounds that contain impurities﹐Mainly oxides and sulfides。Natural ores with few impurities can be directly entered into the smelting process﹔The impurities are more concentrated into concentrate and then smelted。Oxide ores use coke and the carbon monoxide gas produced by combustion in vertical or horizontal furnaces﹑Kiln reduction﹐A few are reduced with hydrogen or methane。Sulfide ores are generally first furnace in oxidizing atmosphere
2015-03-18 Reading quantity 2809
introduction：INAImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]The function of coordination is to makeINAImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]The stationary ring and the rotating ring are respectively the stationary part of the installation part(usuallyINAInlet shaft
2015-03-18 Reading quantity 1466
introduction：shishilu Chamber furnace chamber furnace Industrial furnaces with cuboid or cuboid furnaces，Also known as box furnace。Chamber furnace is divided into two categories: chamber type flame furnace and chamber type electric furnace，The chamber type electric furnace can strictly control the furnace temperature。The combustion device or electric heating element of the chamber furnace is installed on the side wall or at the bottom of the furnace，radiate、convection、Heat transfer methods such as conduction heat the workpiece。The heated workpiece is loaded and removed from the furnace door。Chamber furnace structure is relatively simple，Suitable for single piece、Heating of small batch workpieces，The weight of the workpiece is generally not greater than3Tons of，Furnace bottom area is not greater than10Square meter，The thermal efficiency is low。
2015-03-18 Reading quantity 2802
introduction： A slide used in enginesSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]There are usually two types： One is a thin wall lined with tileSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabrik
2015-03-18 Reading quantity 1463
introduction： 1、Some enterprises are producingINAbearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The process is not strictly in accordance with the cleaning anti-rust regulations and the requirements of the oil seal anti-rust packaging during the processingINABearing parts and after assemblyINAThe finished bearing is treated with rust prevention。Like a ring in
2015-03-18 Reading quantity 1544
Complete category
Save worry and effort，Buy all at one stop
One-to-one customer service
Selection inquiry，Fast response
Delivery guarantee
Multi-position straight hair，No worries about delivery
Source of genuine goods
Genuine guarantee，Honest service
Source of genuine goods
Genuine guarantee，Honest service
Automatic parts one-stop procurement platform
Working hours：Monday to Saturday 8:30-18:00
008618117444109
Official wechat public account
Order for goods/Information at hand
